Malicious PDF — malware analysis report

Static analysis result for SHA-256 60c47b48a1f63e0b…

MALICIOUS

PDF

45.6 KB Created: 2020-07-31 15:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 776a75fb54b355c847ad157393165d63 SHA-1: 5ccd524149e7499816ba5b919764568fd9551612 SHA-256: 60c47b48a1f63e0bfb4222d6bc137b8e153c1bb23f4b8321dda998b7e9b47843
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to jailbreaking an Apple TV, which is a common tactic to entice users to click on links. The embedded link points to a known malicious redirector, indicating an attempt to lead the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=how+to+jailbreak+apple+tv+3
    • http://files.midtntrailcam.com/uploads/1/3/2/6/132681863/9517377.pdf
    • http://files.keepingthefaithal.org/uploads/1/3/1/4/131438211/a9862c30.pdf
    • http://files.xaislor.com/uploads/1/3/2/6/132695576/pojenop_xawowuvi_botixomolenib.pdf
    • http://files.holy-smoke.com/uploads/1/3/1/0/131070351/0aa4fe78eb5.pdf
    • http://files.prostatecancerburnaby.org/uploads/1/3/2/3/132303118/c8257.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/1678/8890/files/22999770229.pdf
    • https://cdn.shopify.com/s/files/1/0438/7130/5896/files/komixoguminutetirodakug.pdf
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/zegijagizijuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/27258140066.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9176/files/zewafi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdf
    • https://cdn.shopify.com/s/files/1/0429/1615/1455/files/wonajerigixulupino.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/56993700345.pdf
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/21868205658.pdf
    • https://cdn.shopify.com/s/files/1/0431/1977/1799/files/40976989403.pdf
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/63235197594.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000740b.bin
9a735a21938dfdd2ee7cdc18fe8e3dffdb60f4349e675be4e21f3a98453a4186
pdf-font-stream PDF embedded font (sfnt) at offset 0x740B 4872 bytes
font_01_sfnt_off000084c3.bin
b7a18e5d2d7d6f6b9b57c383e434854b561d93e570ce0e44943343278b6fe0f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x84C3 10656 bytes